SFP Laser Controller and
Diagnostic IC
Table 04h (Table 01h in DS1859 Configuration), B8h to BFh: Thresholds For High-Bias Warning Flags (HBWA)
FACTORY DEFAULT:
MEMORY TYPE:
FFh
Shadowed Memory (SEE)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
B8h
B9h
BAh
BBh
BCh
BDh
BEh
BFh
7
2 7
7
7
2 7
7
7
2 7
2 6
2 6
6
6
2 6
6
6
2 6
2 5
2 5
5
5
2 5
5
5
2 5
2 4
2 4
4
4
2 4
4
4
2 4
2 3
2 3
3
3
2 3
3
3
2 3
2 2
2 2
2
2
2 2
2
2
2 2
2 1
2 1
1
1
2 1
1
1
2 1
2 0
2 0
2 0
2 0
2 0
2 0
2 0
2 0
bit7
bit0
These represent the high thresholds for comparing bias levels. Each warning byte contains the value for the threshold
corresponding to the temperature range indicated below. Only the upper 8 bits of the 16 bit measurement are compared here.
B8h
B9h
BAh
BBh
BCh
BDh
BEh
BFh
Warning byte location when temperature is less than -8°C.
Warning byte location when temperature in the range of -8°C to +8°C.
Warning byte location when temperature in the range of +8°C to +24°C.
Warning byte location when temperature in the range of +24°C to +40°C.
Warning byte location when temperature in the range of +40°C to +56°C.
Warning byte location when temperature in the range of +56°C to +72°C.
Warning byte location when temperature in the range of +72°C to +88°C.
Warning byte location when temperature is greater than +88°C.
Table 04h (Table 01h in DS1859 Configuration), C0h: Reserved Memory
C0h
RESERVED
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55
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